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    Category Physics

    Electron Conspiracy in a Japanese Lattice Pattern: Kagome Metals Baffle Science

    February 14, 2022, Categories  Physics

    The kagome lattice is composed of three interwoven triangular lattices. For KV3Sb5, each such triangular lattice (denoted red, blue, and green) represent one type of Vanadium sublattice which together form the Kagome metal. The particular kagome lattice structure leads to intriguing quantum effects which yields collective electronic quantum states such as a potentially unprecedented form of superconductivity. (Image: Pixelwg Jörg Bandmann / ct.qmat)

    Toward a new kind of superconductivity: In the past four years scientists have discovered metals whose crystal structure mimics that of a traditional Japanese woven bamboo pattern: kagome metals...

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    Einstein’s Photoelectric Effect: The time it takes for an electron to be released

    February 11, 2022, Categories  Physics

    High-tech: COLTRIMS reaction microscope at electron storage ring BESSY II, Helmholtz-Zentrum Berlin für Materialien und Energie (HZB). Photo: Miriam Weller, Goethe University Frankfurt

    Researchers examine photoelectric effect with the aid of a COLTRIMS reaction microscope. It is now one hundred years ago that Albert Einstein was awarded the Nobel Prize in Physics for his work on the photoelectric effect. The jury had not yet really understood his revolutionary theory of relativity — but Einstein had also conducted ground-breaking work on the photoelectric effect. With his analysis he was able to demonstrate that light comprises individual packets of energy — photons...

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    Mutating Quantum Particles Set in Motion

    February 10, 2022, Categories  Physics

    ​Density plots showing how two particles move through bosonic (“0”) and pseudo-fermionic (π) regions after being released next to each other in two different scenarios. Left: The particles start out as bosons and move together (solid lines) left and right before impinging on a 0-π; border, where they are partially reflected (solid lines) and partially split (dotted lines). For each splitting, one particle escapes the bosonic region. Right: Starting as pseudo-fermions, the particles move in a “superposition” of two ways: in one, they rapidly move apart as ordinary fermions and pass straight through the π-0 borders (dotted lines); in the other, they are bound together, move very slowly, and are forever trapped in the fermionic region (solid lines).

    In the world of fundamenta...

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    Using Gelatin and Sugar as Ink to Print 3D Soft Robots

    February 9, 2022, Categories  Physics, Chemistry/Nanotechnology

     Sustainable 3D-printed soft actuators with integrated waveguide sensors.(A) Biodegradable constituents enable a cradle-to-cradle design for soft robotics, where thermoreversibility opens an additional subcycle for multiple usage and extended lifetime. (B) Three-chamber pneumatic actuator with fiber reinforcement and integrated optical sensors. The sensors detect obstacles in the path of the actuator and allow removal of the object. (C) When immersed in water, the gelatin actuator and waveguides swell and dissolve. Complete biodegradation is enabled in sewage or compost. Credit: DOI: 10.1126/scirobotics.abk2119

    A team of researchers at Johannes Kepler University Linz has used biodegradable materials as ink to print 3D soft robots...

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